Anself 10A/20A 12V/24V LCD Solar Charge Controller Solar Panel Battery Lamp Auto Regulator Overload Protection with Current Display Visual LCD graphic symbol, brief key operation. With dual USB 5V output.Multiple selection of battery.Adds current display function. Adjustable charge/discharge control parameters, settable operating modes of loads. Over-load and short-circuit protection. Battery over temperature protection, low voltage/reverse polarity protection. Automatic identification system voltage level, intelligent PWM charge mode.